1. Tends equipment to mix specified amounts of liquid and powdered ingredients, such as oils, solvents, lead salts, and resins, with paint products, such as paint pigment and paste, varnish, and stain, to thin products: Weighs ingredients, using scales, and dumps into mixer. 2. Turns valves on storage tanks to …
1. Performs any combination of following duties involved in operation of open-hearth furnaces: Moves controls to open and close furnace doors. 2. Removes molten metal in low spots or pockets of furnace floor, using air lance. 3. Shovels refractory materials onto furnace bottom. 4. Transports additives from bins to furnace. …
1. Installs third rails on electric elevated or subway railway tracks: Treats wooden insulator blocks by soaking for specified time in hot paraffin. 2. Assembles trolley chairs by forcing top and bottom castings onto wooden insulator blocks with compressed-air press, drilling bolt holes through castings and blocks with power drill, …
1. Tends thrasher that removes dust and lime from rags: Starts machine and feeds rags into machine hopper. 2. Removes dust receiver from machine, dumps dust, and cleans machine.
1. Repairs defective thermostats used in refrigeration, air-conditioning, and heating equipment, following blueprints and other specifications: Disassembles and examines thermostats to locate and remove defective parts, using handtools. 2. Replaces defective parts, such as bellows, range spring, and toggle switch, and reassembles thermostat according to blueprint specifications, using cam press …
1. Tends machine that automatically assembles, calibrates, and tests thermostat units: Turns setscrews to regulate speed of machine hoppers. 2. Fills hoppers with workpieces and screws. 3. Adjusts control device that positions workpiece under screw mechanism and sets depth of automatic screwdriver, using handtools. 4. Starts machine that automatically assembles, …
1. Tends machine that applies heat to surface of granite slab, causing surface of granite to flake and chip to impart pebbled texture to face of stone: Positions torch carriage over granite slab on roller-conveyor bed of machine. 2. Turns thumbscrews to adjust trip switches on bridge of machine to …
1. Fills, shapes, seals, and marks glass tubes to fabricate thermometers, using vacuum tank, micrometer, gas burners, and handtools: Places thermometer tubes in vacuum tank filled with colored liquid and secures tank lid. 2. Turns handle to create vacuum in tank that causes fluid to fill tubes. 3. Holds end …
1. Performs any combination of following tasks to fabricate and test clinical mercury thermometers: Reads work order to determine sequence of tasks and specifications. 2. Tends machines that heat glass capillary tubes to form blister, constrict and adjust blister, fuse bulb to tube, form top chamber, seal end of tube, …
1. Heats and cools thermometers to test flow of mercury, remove excess mercury, and establish calibration reference points: Places thermometer alternately into hot water and crushed ice and rubs thermometer across corrugated pad to force excess mercury and mercury vapor from thermometer into temporary top chamber of thermometer. 2. Spins …
1. Tends machine that precooks meat products preparatory to canning: Starts machines and conveyors, and loads meat into grinder to be ground and fed into cooker. 2. Observes temperature gauge and color of meat during cooking process, and turns valve or adjusts rheostat to maintain specified temperature for prescribed cooking …
1. Cuts, trims, or scarfs metal objects to dimensions, contour, or bevel specified by blueprints, layout, work order, or oral instructions, using thermal-cutting equipment: Lifts and positions workpiece onto table, manually or using jib or crane. 2. Connects hoses from torch to oxygen tank and fuel gas tank, such as …
1. Dismantles metal assemblies, such as automobiles, machines, building girders, and pipelines, or cuts scrap metal to size for shipping, using thermal-cutting equipment, such as flame-cutting torch or plasma-arc equipment: Connects hoses from hand torch to cylinders of oxygen and fuel gas, or turns knobs to adjust settings of arc-cutting …
1. Tends steam heaters or presses that shape and cure rubber floor mats: Positions sheets of precut calendered rubber on molds. 2. Turns valve to activate vacuum fixtures that draw and hold rubber against contours of molds. 3. Examines molds to ascertain that rubber sheet covers mold and smooths out …
1. Sets up and operates thermal cutting machines which cut metal plates and structural shapes to dimensions, contour, and bevel specified by blueprints, layout, work orders, and templates: Lifts, positions, and clamps metal stock onto bed of machine. 2. Connects hoses from torch to regulator valves and cylinders of oxygen …
1. Repairs yarn texturing machine malfunctions, utilizing knowledge of machine operation: Patrols assigned area to observe cards that indicate malfunctions of specific sections of multiunit machine. 2. Slides cover on suction line behind machine sections with malfunction, breaks yarn, and feeds yarn into suction opening to maintain flow of yarn. …
1. Tends heating units that thaw frozen materials, such as coal and coke, in railroad cars: Pushes buttons to start fuel-feed pumps, heater, and exhaust and air-volume fans. 2. Lights oil burner, and opens valve of fuel line to heating unit in shed where cars are placed. 3. Lubricates and …
1. Tests and adjusts telegraph repeaters and terminal apparatus to maintain continuity of service: Operates test board and other testing devices to trace and diagnose wiring and circuit deficiencies between stations. 2. Replaces or regulates repeaters, relays, switches, and other equipment, using handtools. 3. Communicates with other telegraph offices by …
1. Tends can testing machine that automatically tests cans for leaks: Starts machine and observes operation of machine and conveyor on which cans are carried through machine. 2. Notifies supervisor of defective operation of machine or conveyor. 3. Verifies accuracy of test machine, using standard test can. 4. Places rejected …
1. Tends fiberglass forming and winding machines to obtain sample skeins of sliver used in testing yardage per pound: Inserts cord of timing instrument into wall outlet near machine from which sample is taken and releases pedal to start machine. 2. Places arm of timing device against strands of sliver …
1. Tends equipment to dissolve crude tetryl in heated benzene for manufacture of explosives: Starts pump to transport benzene in weighing tank and turns valve to transfer it to dissolving tank. 2. Admits steam to outer jacket of dissolving tank to heat solvent. 3. Weighs out raw tetryl on scale …
1. Tends shaker screen to remove lumps from dried tetryl explosive: Transfers trays of dried tetryl to screening area, using handtruck. 2. Starts motor that activates shaker screen to separate tetryl powder from lumps. 3. Dumps tetryl from trays into feed hopper of screen. 4. Lines catch boxes with wax …
1. Assists TESTER OPERATOR in cutting and breaking ends of rods and tubes to expose cross-sectional surface for inspection: Feeds end of workpiece into cutting mechanism, manually or with hoist. 2. Piles workpieces in designated areas. 3. Salvages scrap materials and examines surface of workpiece for defects, such as pits …
1. Supervises and coordinates activities of workers engaged in sorting and packing nuts, and inspects sampling of nuts to estimate percentage that will be marketable from each delivery: Selects random sample of nuts from each delivery, places sample in containers, and attaches identification tag to container. 2. Places nuts in …
